It has been more than six months since the first Core i7 processors debuted. Today, Intel released new models, but it's not to expand the lineup. Instead, they'll replace a couple of its higher end models with revised editions. We tested these chips featuring a new D0 stepping core that's rumored to improve overclocking.

FULL STORY @ HARDWAREZONE(http://www.hardwarezone.com/articles/control.php?cid=2&id=2907&src=3rd)